Foot-operable impbession throw-off



1. W. BERNET.

FOOT OPERABLE IMPRESSION THROW-OFF. APPLICATION r1LEDNov.29. 1918.

1,350,272. Patent-ed Aug. 17,1920.

2 sHEETs.-sHEET'1. vh" *Y 1; w. BERNET.

FOOT OPERABLE IMPRESSION THROW-OFF.

APPLICATION FILED NOV. 29. 1918.

Batented Aug. 17, 1920.

2 SHEETS-SHEET 2.

UNITED. S'IAI'ES;`

PATENT oFFlcE.

JOSEPH w. Benner, or NEW LONDON, CONNECTICUT.

FOOT-OPERABLE `lMERESSION THROWeOFF. I

Specification of Letters Patent.

Patented Aug. 17, 1920.

Application.feed Nvemberee, v191s. serial No. 264,682.y

T0 @ZZ whom t may concern Be it known that I, JosEPI-IA'WILLIAM BER- NET, a citizen of the United States, residingat New-London, in the county Aof New Lon.-v

don and State of Connecticut,- have invented`y new and useful Improvements in @Foot-Oper able Impression vThrow-Offs, ofv Awhich the following is a specification.'

This invention comprehends generally improvements inV that r class of inventions' known as printing-:and f more particularly-- hasl reference to a foot-operable impression throwofff v Itv is the primary aim and object kof the present invention to provide device ofthe above mentioned character designed'for use on job printing presses of the Chandler :8ev

Price or Gordon-types and isfcapable of bee. ing operably connected with the main -shafti of the-impression throwoff mechanism and iste-ring less spoilage and a result iii-general decrease inthe cost of producing any .printV ing j ob.

More particularly ,the present! invention contemplates the provision of a device of the above mentioned character wherein a swingablev foot pedal is designed to be mountedon the floor and lnear one side of the press and arranged in operable position relative to the shaft of the impression throwolf mechanism while acting in conjunction with lthe pedal is resilient means for normally holding the impression throwoff mechanism inactive.

It is a more specific object of this invention to provide a device of the above mentioned character wherein a locking element of an improved construction is employed for relatively holding the impression throwoff mechanism in an operative position.

It is an additional object of this invention to provide a device of the above mentioned character which is simple in construction, thoroughly reliable and eficient in its purpose and inexpensive in manufacture.

Other objects will be in part obvious and in part hereinafter set forth.

The invention accordingly consists in the features of construction; the combination of elements and the arrangement of parts which will be exemplified in the construction hereinafter described and the scope of the appli cation which will ybe indicated in the. appended claims.

The `invention is clearly illustrated in the accompanying drawings, in which Figure 1 is aside elevationshowing the attachmentin position on a printing press.

Fig. 2 is a top fplan view thereof.

Fig. 3 is a front elevation thereof.

Fig. A- is a side elevational detailloolring toward the footpedaland showing the same in yan inactive position.

Fig. 5 is-a detail view of the lock member.

Similar characters of reference are employed in all'of the above described views,

1 to indicate corresponding parts.

Referring now, more particularly, to the accompanying*drawings there is illustrated a portion 'of agjob l printing press of Vthe Chandler t Price type` and includes generally spaced side framesl and an oscillatory shaft-2 of `the impression .throw/olf mechanism of the press (not shown). Connected to the outer projecting end ofthe shaft 2 is Y an arm 3 while operably connected with the arm and mounted on the floor near thepress is the improved attachment indicatedinits entirety .by the numeral 4. f

Inreducingthe=- invention to practice a pair of standards 5 are emfployedfand are formed at. .their low-er ends: fwith feet 6 which Iare .secured by suitable fasteners `7 to the floor and positioned parallel with and on opposite sides of one of the side frames 1. These standards terminate at their upper ends in bearings 8 in which is journaled a shaft 9. An arm 10 is disposed about one projecting end of the shaft 9 and secured thereto by means of a set screw 11. A connecting rod v12 is now employed and has one end connected to the arm 3 by means of a pin 13 while the opposite end is connected to the arm 10 by means of a pin 14. A contractile coiled spring 15 has its forward end connected to the pin 14 and its opposite end operatively connected to a friction sleeve 16 loosely disposed on the shaft 2 and tensioned so as to normally hold the throwo' mechanism (not shown) in an inactive position. A foot pedal 17 has its inner sleeve end 18 secured to the other projecting end of the shaft 9 by means of a set screw 19. When pressure is exerted on this foot pedal by the foot of the attendant the shaft 9 will be rocked and the arm 10 swung forwardly and by reason of the connection of the connecting rod 12 with the arm 3 the latter arm will be swung forwardly to rock the shaft 2 andV thereby actuatc the throwoff mechanism.

When it is desired to maintain the throwofl mechanism in an inactive position suitable locking means is employed in the present instance consisting of a lock member generally designated bythe numeral 2O com- .path of the foot lever.

prising a base portion 2l having spaced slots 22 therein through which are arranged fasteners 23 for slidably mounting the member 2() on the floor or equivalent support so that it is shiftable laterally into and out of the This lock member is preferablyvformed from a single piece of strap metal while an upright portion 24 continues from the base portion and continuing from the upright portion and disposed parallel. above the base portion is a horizontal pedal engaging portion 25. A foot engaging flange 26 is formed at the terminal of the foot pedal engaging portion 25 to facilitate shifting of the lock member into and out of operative position relative to the foot pedal as is apparent.

' It is believed in view of the foregoing description that a further detailed description of the operation of the invention is entirely unnecessary. Likewise it is believed Ythat the advantages of thel invention will be readily apparent. However, it is to be observed particularly that by the proviysion of the present foot pedal attachment which is employed instead of or to supplement the'usual hand lever the operator of the press is enabled to quickly apply the impression throwofl mechanism leaving his hands free to feed and straighten the sheets and thereby resulting in the saving of a considerable amount of sheets that would otherwise be spoiled should the operator or feeder Vfail to have sufcient time to apply the throwofl' mechanism.

As many changes could be-made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limited sense. It is also to be understood that the language used in the following claim is intended to cover all the generic and specific features of the invention herein described and all statements of the scope of the invention which as a matter of language might be said to 4fall therebetweenV lhat is claimed is:

A foot actuable throwol attachment for printing presses consisting of a rock shaft having connected therewith Aa link for attachment to the crank arm of the throwoff' pedal and consisting of a slotted base ofv which the slots are engaged by guide pins or bolts, a standard having an offset or shoulder for engagement with the pedal when the locking member is in the path of the latter, and a terminal upstanding projection at the extremity of said offset for engagement by the foot of the operator to move said member into and out of operative relation with the pedal.

In testimony whereof I affix my signature.

JOSEPH W. BERNET. 

